To regress is to go back to an earlier state that is worse, or to a less grown-up way of behaving.

To regress這個字 is to go back是指回到 to an earlier state that is worse更糟的早期狀態 or或 to a less grown-up way of behaving比較不成熟的行為方式。

A country can regress if rights or living standards fall. An illness can regress if a patient slips back. A child who was sleeping through the night might regress after a shock and need a night light again.

if rights or living standards fall如果人權或生活水準下降 a country國家 can regress可能會退步。 if a patient slips back如果病人的病情出現退步 an illness疾病 can regress也可能惡化。 after a shock受到驚嚇後 a child who was sleeping through the night原本整夜好眠的孩子 might regress可能會退步 and need a night light again又需要小夜燈。

Psychologists use it more tightly: under stress, a person may drop back into an older emotional pattern.

Psychologists心理學家 use it more tightly用得更嚴格 under stress在壓力之下 a person一個人 may drop back into an older emotional pattern可能會退回到較早的情緒模式。

The everyday opposite people learn is progress — go forward.

people learn大家學到的 the everyday opposite日常生活中的反義詞 is就是 progress（前進） — go forward——意思是往前走。

Though actually, in a statistics class you will also meet regression, a maths tool for finding patterns in numbers. That path of the family does not mean “getting worse.” In ordinary talk, regress almost always means a slide backwards.

Though actually不過 in a statistics class在統計課上 you will also meet regression你也會遇到 regression（迴歸）這個字 a maths tool for finding patterns in numbers也就是一種用來找出數字規律的數學工具。 That path of the family這個字族裡的這一支 does not mean "getting worse."不代表「變糟」。 In ordinary talk在日常用語裡 regress regress這個字 almost always means幾乎都是指 a slide backwards退步、倒退的意思。